Expanding Shaft

The Expanding Shaft (OEM 3222 3251 67) is a high-quality alternative spare part built for rock drills and drifter rigs working under the toughest mining and tunnelling conditions. It transmits rotational or linear force between drive and driven components, and its straightness and surface finish are critical to smooth, vibration-free operation.

Manufactured from hardened, precision-ground alloy steel, it resists bending, torsional fatigue and wear under sustained high-load drilling duty. Offered as an aftermarket alternative, it delivers full interchangeability and proven durability at a more competitive cost.

Delkom manufactures the world’s highest-quality alternative rock drilling, drifter equipment and spare parts, exported to more than 100 countries. Contact us for availability, bulk pricing and technical support.